
In a restricted report issued in May, the DEA detailed the most recent findings from its heroin monitoring program, assessing the period from 2006 -2011. The report finds that heroin in the U.S. generally comes from two different places: South America and Mexico. If you live east of the Mississippi River, chances are that the heroin you’re buying is from South America. Heroin purchased on the West Coast is almost certainly trafficked from Mexico. Some heroin from Southwest Asia does make it to the U.S. However, the amount is minimal compared to other sources and the quality is relatively poor.